Any time after the fix application, you can elect to rollback to the previous virtual system state by simply clicking a button.
在应用补丁之后的任何时间，只需要单击按钮就可以轻松地回滚到先前的虚拟系统状态。
This paper introduce the rollback checkpointing algorithm in the retry-recovery technique. In order to reduce the system overhead, it presents a scheme implementing in the virtual memory.
本文介绍了容错重算恢复技术中的向后滚动检查点算法。并针对减少系统开销的问题，提出了在虚拟存贮器中的一种实现方案。
When you are implementing virtual mode, you will need to track when a new row is needed in the data model and when to rollback the addition of the new row.
在实现虚拟模式时，您需要跟踪数据模型中何时需要新行，以及何时回滚新行的添加操作。
When you are implementing virtual mode, you will need to track when a new row is needed in the data model and when to rollback the addition of the new row.
在实现虚拟模式时，您需要跟踪数据模型中何时需要新行，以及何时回滚新行的添加操作。
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